Once I went to a gynecologist and they obviously had no idea what it was, they just told me to apply ice on it (which hurts like crazy) and prescribed some sort of a spray, which I have no idea what it wasn’t and I haven’t used it much. What I did was apply slices of tomato on the bump to take the temperature out, or slices of fresh cabbage. That seemed to help and take the pus out.
The 2nd time it started to grow, I went to a private gynecologist and she told me it was an infection, just like those we get on faces (pimples and zits) but that it hurt more because it was on a very sensitive place. She prescribed antibiotics and it went away two days after.
When I went to a dermatologist on another matter, I also asked her about this and she also told me it was probably an infection but that she couldn’t say anything because there wasn’t anything at the time. I asked if I will have to see a surgeon about it, she said no and it is probably treatable with antibiotics.
So, I just wanted to give you an advice not to see a gyno about the matter ( I went to a gyno because of the closeness of my genitals) but to see a dermatologist, they seem to know a lot more about the matter.
Okay, now to me this sounds like it could be 2 different things. I've had boils at times where they are very painful and can be EASILY diagnosed... However, I thought I had another boil but it was near the bottom of my vagina and almost in the inner lining but still external. It actually would pop as if it was an infection. It's not very common but the gland that is down there "the bartholem gland" if I'm not mistaken can get infected with a cyst, which is what happened to me. Mine, according to the doctor wasn't very swollen at all in comparison to what they have seen. I've heard they can get at large as golf balls, mine was the size of a pea & really only hurt during intercourse as if there was a pinching on my taint area is the only way I can think to describe it! So, if anyone else thinks they might have this same cenario, I would research the Bartholem Gland and see if it matches your symptoms.